Siemens 1LA8 - Figure 4-1 Axial Fastening of the Rotor

Alternative rotor bracing
● If you transport the machine after the output element has been pulled on, then you must
axially fix the rotor in another way.
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① Sleeve ② Shaft screw and washer
Figure 4-1 Axial fastening of the rotor
Thread in the shaft extension Tightening torque
M20 80 Nm
M24 150 Nm
M30 230 Nm
Tightening torques for other rotor shipping brace types
● The thread in the shaft extension indicates the rotor weight. This indirectly specifies the
required preload force when axially fastening the rotor.
Thread in the shaft extension Preload
M20 20 kN
M24 30 kN
M30 40 kN
Axial preload force for other rotor shipping brace types
Note
Store the rotor locking device
Be sure to store the rotor locking device. It must be remounted for possible disassembly and
transport.
Preparations for use
4.15 Transport and storage
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 08/2017 39